Scaleway performed mandatory maintenance operations on Serverless Containers in the fr-par region on April 1st and April 8-9, 2026 to prepare for their new v1 API. During the maintenance, namespaces temporarily entered "upgrading" status blocking write operations for up to 15 minutes, container instances were created causing potential scaling anomalies, long-running requests could fail, and cron jobs might trigger multiple times. The operations were completed successfully, maintaining container reachability throughout the process while preparing the infrastructure for enhanced API features.
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On April 1st (between 8 AM and 5 PM UTC), we will perform a mandatory operation in the fr-par region to prepare for the upcoming v1 API (coming soon).
This operation will be carried out in two maintenance windows:
- April 1, 2026
- April 8–9, 2026
Over the course of these three days, changes will be applied to all Serverless Containers namespaces in the fr-par region.
While this operation is seamless most of the time, users may observe the following behaviors:
- Namespaces will pass temporarily in "upgrading" status. This may take up to 15 minutes, depending on the number of resources inside the namespace. During this time, all write operations on the namespace (update namespace, create container, update container, delete container, etc.) will be impossible. Read operations will work as usual.
- Container instances will be created. This is mandatory to ensure the containers are working properly. If a container fails to start, the "status" field will change to "error", and the "error_message" field will show the error, so users can fix it. During that process, users could see multiple instances of their container running, even if it's configured with max_scale = 1, and even if there is no incoming traffic. The Container will downscale as soon as the operation is over.
- Long running requests made during this operation may fail, as we roll out Container instances.
- Crons might be triggered multiple times during the operation. Crons with frequent schedules (such as every minute) might be more impacted.
Please note that during this process, unless the containers cannot start because of an applicative error, the containers will always be reachable.
This process is mandatory to prepare a seamless upgrade to the new v1 API, which will bring enhanced features and improvements. More details here: https://www.scaleway.com/en/docs/serverless-containers/reference-content/v1-migration-guide/
Thank you for your understanding, and we apologize for any inconvenience this may cause.
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